World Map Points

Points on a Map

A world map rendered with a natural Earth projection displays cities as semi-transparent teal circles, with circle area scaled by population using a square-root scale. The visualization pairs D3’s geoNaturalEarth1 projection and geoPath with React components to draw landmasses, graticules, and country interiors. City coordinates and population data come from a CSV file, while geographic boundaries load via TopoJSON from the world-atlas package.

RRMartins11

Points on a Map

A world map displays cities as semi-transparent, radius-scaled circles proportional to population, using a Natural Earth projection. The visualization, built with React and D3 (v5), renders SVG paths for land, graticules, and sphere outlines via `geoPath`, while circles are projected using `geoNaturalEarth1`. City data comes from a CSV of world cities, and the map’s geographic basemap is provided by the `world-atlas` TopoJSON, processed through `topojson.feature` and `topojson.mesh`.

RRajat Dangat

Points on a Map

A world map rendered with a Natural Earth projection displays global cities as semi-transparent circles, sized by population. The visualization uses React and D3 v7, with `geoNaturalEarth1` and `geoPath` to draw landmasses, graticules, and country interiors from TopoJSON data. City coordinates are projected and plotted as SVG circles, with a sqrt scale mapping population to radius. Data comes from a CSV of world cities loaded via `d3.csv`.

BBen Seebeck

Points on World Map

This visualization displays a Natural Earth projection world map with semi-transparent circles sized by city population. The map renders landmasses, country borders, and graticules using d3.geoPath and d3.geoNaturalEarth1, with data from World Atlas TopoJSON. City locations and populations come from a CSV file, with circle radii scaled by d3.scaleSqrt. The React component structure uses hooks to load both datasets asynchronously, and all marks are drawn as SVG elements.

Ssuserocc

Points on a Map

A world map displays country boundaries and graticules over a light gray sphere, with semi-transparent teal circles sized by city population. The visualization uses d3.geoNaturalEarth1 for projection and d3.geoPath to render land, interiors, and sphere outlines from TopoJSON data. City coordinates are projected and drawn as SVG circles, with radii scaled using d3.scaleSqrt applied to population values from a CSV dataset. The React component structure manages state for both world atlas and city data.

Jj-PGi

Points on a World Map

A world map displays population data for cities as scaled circles, with marker size proportional to population using a square-root scale. The visualization uses D3’s geoNaturalEarth1 projection, geoPath, and geoGraticule to render land masses, country borders, and graticules, while React manages state and renders SVG circles. City coordinates and populations come from a CSV file, with world geography from a TopoJSON dataset. Circles are semi-transparent blue, overlaid on gray land and sphere outlines.

DDeborah Ong

World Map points

A world map displays city points scaled by population, with country boundaries, graticules, and a sphere outline rendered as SVG. Using React and D3 v5, the visualization employs d3.geoNaturalEarth1 for projection, d3.geoPath for drawing land and graticule geometry, and d3.scaleSqrt for radius mapping. City data comes from a CSV of world cities, while country shapes load from World Atlas TopoJSON. Semi-transparent teal circles overlay the map, with land filled light gray and interiors shown as thin strokes.

Mmarianamartins87

Points on a Map

This example displays world cities as semi-transparent circles on a natural Earth projection, with circle size encoding each city's population. The map renders landmasses and country borders from the world-atlas TopoJSON dataset, with graticules and a sphere outline providing geographic context. Using React hooks to load data asynchronously, the visualization applies d3.geoNaturalEarth1 and d3.geoPath for projection, d3.scaleSqrt for radius scaling, and maps city coordinates through the projection to position SVG circles.

Jjbruzzo